This system is a high-precision, non-intrusive optical diagnostic device, suitable for the strong coupling application scenarios of transient combustion and reactive flow fields. The system integrates Particle Image Velocimetry (PIV) and hydroxyl-based Planar Laser-Induced Fluorescence (OH-PLIF) technologies, adopts nanosecond-level high-precision synchronous control, and can realize the simultaneous acquisition of flow velocity fields and spatial distributions of OH radicals.

Key technical specifications:

Maximum laser repetition rate: 10 kHz;

Synchronization accuracy: microsecond level;

Temporal resolution: capable of capturing unsteady flow and flame dynamic processes;

Spatial resolution: meets quantitative analysis requirements of flow and flame parameters;

Sensitivity: high enough to detect weak OH fluorescence signals.

The system supports quantitative measurement of flow velocity, turbulence intensity, flame front morphology and reaction zone distribution,etc.

It is applicable to fundamental combustion research, aero-engine and thermal power equipment flow field diagnostics, providing reliable technical support for related experimental studies.